NO20004361L - Mottaker for signaler som er split-C/A-kodet - Google Patents
Mottaker for signaler som er split-C/A-kodetInfo
- Publication number
- NO20004361L NO20004361L NO20004361A NO20004361A NO20004361L NO 20004361 L NO20004361 L NO 20004361L NO 20004361 A NO20004361 A NO 20004361A NO 20004361 A NO20004361 A NO 20004361A NO 20004361 L NO20004361 L NO 20004361L
- Authority
- NO
- Norway
- Prior art keywords
- code
- split
- locally generated
- receiver
- square pulse
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
- G01S19/30—Acquisition or tracking or demodulation of signals transmitted by the system code related
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/32—Multimode operation in a single same satellite system, e.g. GPS L1/L2
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
En mottaker (10) for et globalt posi-sjoneringssystem (GPS) henter inn og følger en såkalt splitt-C/A-kode, idet det med dette forstås en fjernings/ innhentingskode som er modulert med en firkantbølge. Det mottatte signal synkroniseres med et lokalt frembrakt 10,23 MHz firkantpulssignal som kan betraktes å være en 20,46 MHz firkantbølgekode, og en lokalt frembrakt 1,023 MHz C/A-kode. Først synkroniseres firkantpulssignalet med det tilsvarende firkantpuls-innhold i signalet som mottas, og en av flere ekstremal-verdier (2) i autokorrelasjonsfunksjonen (1) for splitt-C/A-koden følges. Deretter endres fasen av den lokalt frembrakte C/A-kode i forhold til firkantpulssignalet, for å synkronisere den lokale og mottatte C/A-kode, hvorved en korrelasjon innsiktes mot den største av eks-tremalverdiene (2), nemlig den riktige maksimalverdi (2c), sentralt i autokorrelasjonsfunksjonens (1) omhyl-ningsfunksjon (4). Deretter kan mottakeren (10) følge maksimalverdien (2c) direkte ved hjelp av den lokalt frembrakte splitt-C/A-kode, og slik oppnås en pålitelig og nøyaktig posisjonsbestemmelse.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/138,932 US6184822B1 (en) | 1998-08-24 | 1998-08-24 | Split C/A code receiver |
PCT/IB1999/001663 WO2000011491A2 (en) | 1998-08-24 | 1999-08-16 | Split c/a code receiver |
Publications (2)
Publication Number | Publication Date |
---|---|
NO20004361D0 NO20004361D0 (no) | 2000-09-01 |
NO20004361L true NO20004361L (no) | 2001-02-05 |
Family
ID=22484314
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO20004361A NO20004361L (no) | 1998-08-24 | 2000-09-01 | Mottaker for signaler som er split-C/A-kodet |
Country Status (8)
Country | Link |
---|---|
US (1) | US6184822B1 (no) |
EP (1) | EP1110098B1 (no) |
JP (1) | JP2002523752A (no) |
AU (1) | AU749500B2 (no) |
CA (1) | CA2322643C (no) |
DE (1) | DE69902282T2 (no) |
NO (1) | NO20004361L (no) |
WO (1) | WO2000011491A2 (no) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2001271393A1 (en) | 2000-06-23 | 2002-01-08 | Sportvision, Inc. | Track model constraint for gps position |
ATE486291T1 (de) | 2000-06-23 | 2010-11-15 | Sportvision Inc | Auf gps basierendes verfolgungssystem |
US7132980B2 (en) * | 2002-11-01 | 2006-11-07 | Sirf Technology, Inc. | Multi-function device with positioning system and shared processor |
US6922167B2 (en) * | 2003-07-14 | 2005-07-26 | European Space Agency | Hardware architecture for processing galileo alternate binary offset carrier (AltBOC) signals |
WO2005022187A2 (en) | 2003-09-02 | 2005-03-10 | Sirf Technology, Inc. | Control and features for satellite positioning system receivers |
US7822105B2 (en) * | 2003-09-02 | 2010-10-26 | Sirf Technology, Inc. | Cross-correlation removal of carrier wave jamming signals |
US20060048881A1 (en) * | 2004-09-08 | 2006-03-09 | Evans Richard B | Laser-assisted placement of veiled composite material |
US7702040B1 (en) * | 2006-04-12 | 2010-04-20 | Sirf Technology, Inc. | Method and apparatus for frequency discriminator and data demodulation in frequency lock loop of digital code division multiple access (CDMA) receivers |
TW201024780A (en) * | 2008-12-26 | 2010-07-01 | Altek Corp | Electronic device for decoding navigation data by using phase angle variation and method thereof |
GB201311571D0 (en) * | 2013-06-27 | 2013-08-14 | Qinetiq Ltd | Signal processing |
US11340353B2 (en) * | 2019-02-14 | 2022-05-24 | Samsung Electronics Co., Ltd. | Multipath mitigation for GNSS receivers |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5736961A (en) | 1995-10-06 | 1998-04-07 | Novatel, Inc. | Dual Frequency global positioning system |
US5724046A (en) * | 1996-02-01 | 1998-03-03 | Trimble Navigation Limited | Method and system for using a single code generator to provide multi-phased independently controllable outputs in a navigation satellite receiver |
US6160841A (en) * | 1996-05-24 | 2000-12-12 | Leica Geosystems Inc. | Mitigation of multipath effects in global positioning system receivers |
US6044071A (en) | 1997-09-12 | 2000-03-28 | Stanford Telecommunications, Inc. | Signal structure for global positioning systems |
-
1998
- 1998-08-24 US US09/138,932 patent/US6184822B1/en not_active Expired - Lifetime
-
1999
- 1999-08-16 AU AU59928/99A patent/AU749500B2/en not_active Expired
- 1999-08-16 DE DE69902282T patent/DE69902282T2/de not_active Expired - Lifetime
- 1999-08-16 WO PCT/IB1999/001663 patent/WO2000011491A2/en active IP Right Grant
- 1999-08-16 EP EP99967838A patent/EP1110098B1/en not_active Expired - Lifetime
- 1999-08-16 CA CA002322643A patent/CA2322643C/en not_active Expired - Lifetime
- 1999-08-16 JP JP2000566694A patent/JP2002523752A/ja active Pending
-
2000
- 2000-09-01 NO NO20004361A patent/NO20004361L/no not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
CA2322643A1 (en) | 2000-03-02 |
CA2322643C (en) | 2006-04-11 |
AU5992899A (en) | 2000-03-14 |
AU749500B2 (en) | 2002-06-27 |
WO2000011491A2 (en) | 2000-03-02 |
NO20004361D0 (no) | 2000-09-01 |
DE69902282D1 (de) | 2002-08-29 |
DE69902282T2 (de) | 2003-01-16 |
US6184822B1 (en) | 2001-02-06 |
EP1110098B1 (en) | 2002-07-24 |
JP2002523752A (ja) | 2002-07-30 |
WO2000011491A3 (en) | 2000-05-18 |
EP1110098A2 (en) | 2001-06-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FC2A | Withdrawal, rejection or dismissal of laid open patent application |